Red Hat Bugzilla – Bug 646082
iwlagn: Received BA when not expected .. Regression on .36
Last modified: 2011-01-12 08:16:40 EST
Description of problem:
We seemed to be hitting a regression with .36
Dmesg is flooded with: iwlagn : Received BA when not expected
Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot and wait establish a wireless connection.
No iwlagn errors
Further digging reveals that this is most likely a uCode firmware bug that seems to be affecting a series of Intel cards so I guess 4965 can be added to that list.
See https://bugzilla.kernel.org/show_bug.cgi?id=16691 for details
This is the firmware I got installed.
iwlwifi-4965-2.ucode is what's being shipped in iwlwifi-4965-ucode-184.108.40.206 which is the latest available for this card on http://intellinuxwireless.org/?n=Downloads
If this cause some functional problem, this workaround should help:
echo "options iwlagn 11n_disable50=1 11n_disable=1" >> /etc/modprobe.d/iwlwifi.conf
*** This bug has been marked as a duplicate of bug 648732 ***